Fifths to john v



(No Model.)

G. B. MOORE.

VALVE.

No. 459,044. Patented Sept. 8.1891.

UNITED STATES PATENT OFFICE.

GEORGE B. MOORE, OF SPRINGFIELD, MASSACHUSETTS, ASSIGNOR OF TIVO- FIFTHS TO JOHN V. GLOVER, OF SAME PLACE.

VALVE.

SPECIFICATION forming part of Letters Patent No. 459,044, dated September 8, 1891.

Application iiled January 28, 1891. Serial No. 379,404. (No model.)

To aZ'Z whom, it may concern; otherwise adapted to be coupled with the sup- Be it known that I, GEORGE B. MOORE,aciti ply-pipe c, while the forward end of the secven of the United States, residing at Springtion a is inclosed by the cap g, which screw held, in the county of Hampden and State of engages said section,as shown. The rear end 55 5 Massachusetts,have invented new and useful of casing-section a has the contracted open- Improvementsin Valves, of which the following e, which is surrounded by the annular lip ing is aspecifl'catiou f, and at the base of said lip is a packing-ring lhis invention relates to improvements in 7L, of rubber or ot-lier suitable material. valves, especially that class known as ball- B represents the valve-stem, which plays 6o io cocks, .although certain features of the inthrough an opening therefor centrally in the venton are applicable to valves of other desaid cap g, and at its rear end it carries the scriptioiis. valve C, which is of a general cylindrical form The principal objects of the invention are and which has an annular lip or rib at its the provision of means interposed between forward end to rest upon the valve-seat con- 65 [5 the float and valve-stem for insuring an easy stituted by said packing-ring 72,. The valve opening of the valve against the water-pressis held against its seat and closed under norure, which pressure normally serves to mainmal conditions by the pressure of the water tain the valve closed, and said means also against the rear side thereof. In this valve assisting in the closing of the valve when the no springs are employed. It will be observed, 7o zo float rises; the provision of means for inhowever, that the valve plays in a supplesuring at the proper time or under the proper mental chambery', which is within the chamcondtions a slow closing of the valve and bered section l), said supplemental chamber against a water check or cushion, and the being formed by the shell D. This shell is` provision of a construction whereby the parts of conical form and closed atits rear end, and 7 5 25 of the valve when assembled shall be most forward thereof it is of an external diameter compact and eifective against leakage, and somewhat less than that of the chamber in yet which may be readily disconnected for the section b, and said shell is held axially the purpose of repairs or renewal of the packwithin said section I) by the outwardly-exing. tended `flange Z, which is in confinement be- 8o 3o To these ends the invention consists in the tween the end of section a and the internal construction and combination of parts, all seat or shoulder `1L on the section l). The said substantiallyas will hereinafter more fully shell is of course open at its forward end and appear, and be set forth in the claims. has ports o through its sides at suitable in- Reference is to be had to the accompany tervals. The water from the supply when 85 35 ing drawings, in whichthe valve is open, necessarily first iinpinging Figure l is a perspective view of the ballagainst the conical rear end of the shell D, cock. Fig. 2 is a vertical section of the valve, then passing into the annular space between shown as closed, a part only of the operating said Vshell and the inner wall of casing-secand ball-carrying arm being shown. Fig. tion Z1, and then radiallythrough the ports in- 9o 4o is a section similar to Fig. 2, but showing the ward to the supplemental chamber, wherein valve as opened. Fig. et is a vertical crossthe valve plays, becomes divided in its volsection on the line l 4, Fig. 2. Figs. 5, G, and ume and where the pressure is excessive pei'- 7 are perspective views of parts or details mits greater freedom in the opening of the hereinafter more particularly referred to. valve. The valve-stein at its forward end is 95 45 In the drawings, A represents the body of forked, as at p, carrying between the ineinthe valve, of a general cylindrical form, said bers thereof the rollers r and r', suitably sepabody being necessarily, for the proper asrated. semblage of the parts, made in two easing- G represents an arm which is pivotally consections a and l), the one having a screwnected at 9 on the top of casing-section a, Ico

5o threaded. engagement with the other. The and continuing forward more or less nearly section h has its end screw-threaded or is horizontally for a short distance, then in- 'clines downwardly in the oblique Section s, which passes within the forked portion of the valve-stein and between the said frictionrollers r lr. This arm carries the secondary arm H. The connection of one of said arms with the other and also the adjustment of the one upon the other are insured by the provision of the split hub 10 with the ear-pieces l2 and the binding-screw 1B. The secondary arm carries the ball-oat J. The inclined portion s of the arm G exerts a forcing or cam action against the roller r as the ballioat lowers, forcing the valve-stein rearwardly in the line of its axis, while as the ball-Heat rises and the arm G is swung upwardly the upper edge of theinclined portion of the arm acts againstY the forward roller rand also then exerts positively such a cam action as to forceY the valve-stem forwardly and the valve to itsY seat, the pressure not being depended on to entirely effect the closing of the valve.

An intermediate portion of the valve-stem B is provided with an outwardly-extended circular packing t, which fits closely and plays wit-hin the sleeve L, which is held in place within the forward chambered portion of the casing-section a of the valve. As shown, the valve-stein is formed in two sections l-t and 15, the one screwing by the spindle-like portion 1G thereof into the end of the other portion, the adjacent uniting ends of the valvestem sections 14 and 15 having the flanges or enlargementslS 1S, which serve to clamp, when said sections are securely united, the piston-like part or packing t between them. Said packing t, as shown, is of cup shape, with its upturned annular edge toward the forward end of the valve.

A suitable portion of the casing-section a is'cored out, as Vat u, so as to leave between the inner wall of said casing-section and a portion of the external wall of said sleeve an annular space, and there is a port w leading through the side of said sleeve, whereby communication may be had, when the valve-stem is forced inwardly to open the valve, between the main chamber in casing-chamber a and the charnber Within the sleeve, which is forward of said cup-shaped packing, which, under the opening and closing of the valve, reciprocates as a piston with the'valve-stem. At the time the valve is closed, as seen in Fig. 2, the forward edge of said cup-shaped packing or piston t lies just at or slightly forward of the forward boundary of the said port.

M represents the outlet-opening for the valve, the same leading from the chamber in the casing-section c. As preferably formed and arranged and as particularly shown, the said outlet-passage M leads from the top of the chamber in section a, thence continuing down'and around the body of said section,

` being preferably constructed as a duct within the side of the wall integrally formed in the casting, in a manner practicable by brassfounders.

By having the discharge from the chainbered section a leading out of the top thereof, as shown, the said chamber acts as a trap, being always retained substantially full of water, even when the valve is closed, and especially as is necessary when the valve 1s closing and just previous to its entire closure, for thereby there will be an entrance through the` poort w in the thiinble, and to the advance of the piston-packing t to fill the sleeve forward of said piston-packing and thereby to constitute a water-cushion against which the said piston-packing must work, and consequently to insure a slow closing of theyalve without any liability of the parts jumping or clattering or of there being the annoyance occasioned by a water-hammer against the valve. .Y

Inside of the cap g and between it and the forward end of the SleeveL is placed a packing fr, which is more or less of a conical form with its apex rearward, the apex of the said packing member Ybeing cut out, leaving-the central portion of this packing as a perforation, through which the valve-s1 em passes with a close Iit, and by this packing, formed and applied as described and shown, a most effectual water-tight closure of the valve at its forward end is secured. Y

What I claim as my invention isl. In a ball-cock, the combination, with the valve-stein having the forked extremity and provided and supported between the members thereof with the roller r, of a suitably sustained and pivoted ball-carrying arm having a portion inclined relative to the length of the valve-stem and having an engagement with the said roller and operating as a cam thereon as the said arm lowers to force the valve-stem inward, substantially as and for the purpose'set forth.

2. In a ball-cock, the combination, with the valve-stem having the forked extremity and providedwith separated abutments, astherolls r o", of a suitably sustained and pivoted ballcarrying arm having a portion inclined to the length of the valve-stem and by such portion passed between said rolls or abutments on the valve-stem and operating on being swung downwardly as a cam to force the valve-stem inward and on-the upward swing of the arm to positively assist in the closing of the valve, substantially as described.

3. In a ball-cock valve, in combination, a chainbered valve body or casting` having an inlet-opening and provided with a duct which extends within the wall thereof from the top of the casting around the side thereof and terminating under the valve-body in the downwardly-directed outlet tube or nozzle, a port leading from the top of the main valvechamber to said duct, a valve-stem movable within said casting and having a valve adapted to close said opening, a supplemental or water-catch chamber having a port which is in communication with the main chamber of the valve, and a piston on the valve-stem movable in said supplemental chamber to be ITO water-cushioned or retarded as the valve closes, substantially as described.

I. In a valve, in combination, a casing or chambered body having an opening e thereinto and a valve-seat thereat and an outletopening and having its end opposite the inlet-openingexternally screwth readed, a shouldered sleeve entered and supported within the said latter-named end of the valve-casing, provided with the port w, there being between an inner portion of said sleeve comprising said port and the interior of the casing an annular space u, the valve-stein provided with a valve for closing the said Valveseat and extending through the said sleeve and beyond the valve-body and provided with a piston iitting within the sleeve, and a cap g, and packing applied on the threaded end of said casing, substantially as described.

5. In a ball-cock valve, the combination, with the valve-stern, of a le'ver G, by one end pivotally mounted on the valve-body and having a suitable Vportion which engages said valve-stern for moving the latter as said lever is swung and provided with a hub 10, the lever II, for carrying the oat, having an angularly-extended arm which is adjustably lnov able through the said hub, and means for confining the said arin on the lever G, subprovided with a radial port o, and the valve- 4o stem provided with the valve C, which is disposed and movable within said shell, substantially as and for the purpose set forth.

7. In a valve, in combination, the chainbcred body consisting of sections a and l), the former having the contracted opening e through its rear end and provided with the valve-seat thereabout and said sect-ion at its rear end portion being externally screwthreaded, the section l) having a water-supply opening at its rear end and being internally screw-threaded at its forward portieri and provided with the shoulder n, the shell D, provided with the flange Z, the port-s o, and the conical rear end, and the valve-stein and valve C, substantially as described and shown.

8. In a valve, in combination, the chainbered body consisting of sections a and b, the section a having the contracted opening e at its rear end and a suitable valve-seat thereat, the outlet-conduit lll, leading from the top thereof, the screw-threaded forward extremity, the sleeve L, provided with a port u, the packing and the cap g, the section b screw-engaging said section a, and having an opening adapted to be put in communication with the water-supply and having the sh ell D supported therein which has the ports 0 o, and the valve-stein formed by the screwunited sections 14 and l5, coniining between them thepiston t, and said stem carrying at its rear end the valve C, all substantially as described, and for the purposes set forth.

GEORGE B. MOORE.

Witnesses:

II. A. CHAPIN, G. M. CHAMBERLAIN. 

